Zhang Heng

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Zhang Heng
Zhang Heng.jpg
A stamp o Zhang Heng issued bi China Post in 1955
Native name張衡
BornAD 78
Nanyang, Cheenae
DiedAD 139 (aged 60–61)
Luoyang, Cheenae
Kent forSeismometer, hydraulic-powered armillary sphere, pi calculation, poetry, universe model, lunar eclipse an solar eclipse theory
Scientific career
FieldsAstronomy, mathematics, seismology, hydraulics, geografie, ethnografie, mechanical ingineerin, calendrical science, metapheesics, poetry
Zhang Heng
Zhang Heng (Chinese characters).svg
"Zhang Heng" in Tradeetional (tap) an Semplifee'd (bottom) Cheenese chairacters
Tradeetional Cheenese張衡
Simplifee'd Cheenese张衡

Zhang Heng (Cheenese: ; AD 78–139), umwhile romanised as Chang Heng, wis a Han Cheenese polymath frae Nanyang that leeved in the Han dynasty.